Air Noise Environment - Staff Beau Weyers is an Environmental Engineer who has been with Air noise environment since November 2002. Since joining the company, Beau has been involved http://www.ane.com.au/Pages/Staff.htm

Extractions: Principal Consultant and Managing Director Claire is an Environmental Scientist with over sixteen years experience in the fields of air quality, acoustics and environmental management. With postgraduate qualifications in Air Pollution Control and Acoustics and Noise Control, Claire offers a broad based skill set and specific expertise in the technical areas of air quality and acoustics. As founder and managing director of the company Claire is responsible for the technical direction of all projects completed by the company. Craig Beyers - B.Env.Eng MIEAust Associate Craig has over five years experience in the environmental field and specific expertise in air quality dispersion, noise modelling, air and noise monitoring and assessment. Since joining Air Noise Environment in 1999, Craig has undertaken a broad range of air and noise studies and provides specific expertise in the field of mathematical modelling, including computational fluid dynamics. Recently Craig has been responsible for the air quality aspects of a range of major infrastructure projects including the Cross City and Eastlink Tunnels.

Home Networking: Understanding Coaxial Cable This measured ingress noise environment can be modeled using controlled random This noise environment is a combination of a background noise floor at a http://www.phptr.com/articles/article.asp?p=169518&seqNum=7

Extractions: Interior noise in a vehicle, either arising from the heating and cooling systems or from the contact between the tire and the road, can be distracting to drivers. This project focuses on reducing the interior noise in a vehicle by alleviating noise generation at the source, and by cancelling any residual generated noise. For airborne noise from heating and cooling systems, investigators are studying multiple-fan systems and speed/phase control of each fan as a potential way to achieve noise control. For structure-borne noise, investigators are reviewing the effectiveness of various approaches to develop road noise control systems. Investigators

Right To Quiet Society leaflets in Vancouver, Victoria and other places to raise awareness of the ever increasing level of noise pollution in our environment. http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

State Of Noise Environment achieved the environmental quality standard for environmental noise level in both day Achievement rate of Environmental Quality Standard for Noise http://www.epcc.pref.osaka.jp/apec/eng/monitor/page/bc1.html

Extractions: History of Environmental Protection State of Environment Environmental Inpact Assessment Approaches to Global Environmental Problems ... ENGLISH previous next According to the noise monitoring results in fiscal 2000, 299 out of 521 monitoring points achieved the environmental quality standard for environmental noise level in both day time and night time, 137 points achieved in either day or night, and 85 points did not achieve in either day or night.

Wired News Finally, A Car That Talks Back Driving "can be a nasty noise environment with the wind and engine noise" she said, but IBM has worked for many years with auto manufacturers http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

Extractions: Project Facts The project team is now installing noise walls along Boylston Avenue and the Harvard Avenue on-ramp to I-5. The noise reduction goal is to achieve at least a seven decibel (dBA) decrease along all frontline public spaces and ground-level residences. Note: A 10-dBA reduction in noise will sound half as loud to the human ear. For more info on acoustics and noise walls, visit WSDOT's Air Quality, Acoustics and Energy homepage . It also includes tips on how you can lower noise in and around your home. Eastern limits of the project run along Harvard Avenue ranging from East Roanoke Street in the south to just north of East Hamlin Street in the north. Boylston Avenue makes up the project's western limits, from East Lynn Street to near East Roanoke Street.

Extractions: Sigtronics has over 28 years experience working in very high noise environments such as the North American T-28. The M-80 and M-80H microphones have been developed specifically for use in high noise aircraft like the T-28. This microphone has a narrow bandwidth and the proper gain for use in this extremely demanding environment. The narrow bandwidth of our microphones is designed to carry voice frequencies, rejecting all others. The gain of our microphones are optimized for voice sound levels to maximize the signal to noise ratio, and thereby the intelligibility. SPA-400N Intercom The SPA-400N intercom has been designed to work in the very high noise environment and has been extensively tested in the North American T-28. This intercom has internal circuitry that is specially tailored for very high noise. The intercom also has a push to intercom feature that is very useful for open cockpit aircraft or helicopters where an observer may lean out and place his head in the downwash of the rotor. To use this feature, the squelch control is turned full counter clockwise which disables the squelch. By depressing a push to intercom switch the squelch is then opened allowing intercom communication. Once the squelch is reset, the voice activated squelch will operate normally. Heavy Duty Windscreen When using a headset in an open cockpit aircraft, care must be taken to shield the microphone from direct air flow from around the windscreen. Wind has an enormous amount of energy that will trigger an intercom squelch or even saturate a microphone. One way to minimize the effects of wind is the use of a heavy duty windscreen such as Sigtronics P/N 100593. In situations where the wind is too strong or where the turning of the head places the microphone directly in the slip stream, the push to intercom feature of the SPA-400N can solve this problem.